Chrysanthemum morifolium is one of the most economically important and pop floricultural crops in the kin Asteraceae . Chrysanthemum flowers vary substantially in full term of colors and shapes . However , the molecular chemical mechanism controlling the development of chrysanthemum flowered color and shapes remains an riddle .
The team analyzed a cut - peak chrysanthemum variety that bring on normal capitula composed of ray floweret with normally developed pistils and purple corollas and mutant capitula constitute ray florets with green corollas and vegetative buds instead of pistils .
They conducted a whole - transcriptome depth psychology of the differentially expressed genes ( DEGs ) in the mutant and normal capitula using third - generation and 2d - generation sequence techniques . The team identified the DEGs between the mutant and normal capitulum to uncover important regulators underlying the differential development . Many written text cistron and genes related to the photoperiod and GA pathway , flowered harmonium identicalness , and the anthocyanin biogenesis pathway were differentially show between the normal and mutant capitulum . A qualitative analysis of the pigments in the floweret of normal and mutant capitulum signal anthocyanins were synthesized and roll up in the floret of normal capitulum , but not in the florets of mutant capitula . These results offer clues regarding the molecular basis of the replacement of Chrysanthemum morifolium ray floret with usually developed pistil and empurpled corollas with mutant re florets with green corolla and vegetative bud . to boot , the study finding will aid to elucidate the molecular mechanism underlying floral organ development and contribute to the developing of techniques for studying the regulation of bloom physique and color , which may enhance chrysanthemum breeding .
The whole - transcriptome analytic thinking of DEGs in mutant and normal C. morifolium capitula depict herein indicates the anthocyanin inadequacy of the mutant capitula may be related to the sport that replaces ray floret pistils with vegetative buds . Moreover , pistil may be required for the anthocyanin biosynthesis in the corollas of chrysanthemum ray florets .
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Liu , Hua & Luo , Chang & Chen , Dongliang & Wang , Yaqin & Guo , Shuang & Chen , Xiaoxi & Bai , Jingyi & Li , Mingyuan & Huang , Xinlei & Cheng , Xi & Huang , Conglin . ( 2021 ) . Whole - transcriptome analysis of differentially expressed genes in the mutant and normal head of Chrysanthemum morifolium . BMC Genomic Data . 22 . 10.1186 / s12863 - 021 - 00959 - 2 .
